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Progressive Die Stamping of 4130 Chrome Moly Steel for the Automotive Industry

A customer in the automotive industry approached us to produce this Metric Stat-O-Seal which was to be used within an automotive application. To save on production costs, we designed the tooling to allow 3-up production, or 3 parts to be stamped per stroke of the press.

The progressive die stamping was performed on a 175 ton press that utilizes an automated production line.  We are able to meet tolerances of ± 0.002" for this product. It was of 4130 chrome molybdenum steel, which met SAE AMS 6350/6351 standards. All parts received extensive dimensional testing as well as zinc plating and heat treating.

Prior to production, first article samples were put through 72 hour salt spray corrosion testing, which was in accordance with ASTM B117 standard for corrosion acceptance. This ensured that the parts would stand up to years of use on the road. For more information on this project see the table below or contact us directly.

  Chrome Moly Steel
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Chrome Moly Steel
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Highlights of this Custom Die Stamping Project

Product Description This seal is used within an automotive application
Custom Die Stamping Capabilities
Applied/Processes
Primary:
Design and Manufacturing of Tooling
  • Designed 3-Up tool
Progressive Die Metal Stamping
  • Automated production line with transfer tool
Secondary:
Zinc Plating
Heat Treatment
  • Heat Treated 120,000-136,000 psi (827-938 MPO)
Equipment Used to Manufacture Part 175 Ton Press
Benefits Designed and Built a 3-up tool
  • Produces 3 parts per stroke
  • Triples productivity and improves material yield
Overall Part Dimensions O.D.: Ø 0.383" ± 0.003" to Ø 1.240" ± 0.003"
I.D.: Ø 0.235" + 0.005/ - 0.000 to Ø 1.038" + 0.010"/ - 0.000"
Tightest Tolerances ± 0.002"
Material Used 4130 Chrome Molybdenum Steel Per SAE AMS 6350/6351
Material Finish Zinc Plate Per ASTM B633 Type III (Clear)
In process testing/inspection performed Dimensional Inspection
  • Micrometers
  • Calipers
  • CMM
72 hour salt spray corrosion testing
  • Coating shows no base metal corrosion
  • Tested in accordance with ASTM B117
Industry for Use Automotive
Volume High Volume Production
Delivery/Turnaround Time Initial Delivery: 12 Weeks
Delivery Location Mexico
Standards Met Customer supplied print, 2D CAD Drawing
Product Name Metric Stat-O-Seal
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